html, body{ width: 100%;  height: 100vh; margin: 0; padding: 0;}

.area-container-div{
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100vh;
  /* display: none; */
  z-index: 5000;
  position: fixed;
}

.area-mask{
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  position: fixed;
  background-color: rgba(0,0,0, 45%);
}